Home / 1,292,464.96-1,938,559.92-345,931.36

Finding the Fourth Proportional to 1,292,464.96, 1,938,559.92 and 345,931.36

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Solution

The fourth proportional to 1,292,464.96, 1,938,559.92 and 345,931.36 is: 518,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,464.96 : 1,938,559.92 = 345,931.36 : x
  2. Step 2: Convert to fraction form
    1,292,464.96/1,938,559.92 = 345,931.36/x
  3. Step 3: Cross multiply
    1,292,464.96x = 1,938,559.92 × 345,931.36
  4. Step 4: Simplify right side
    1,292,464.96x = 670,608,669,567.09
  5. Step 5: Solve for x
    x = 670,608,669,567.09/1,292,464.96
  6. Step 6: Final answer
    x = 518,860.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.